console.log('03子模块')
let str1 = 'abcd'
let str2 = 'xyz'
 
let fn1 = () =>  console.log('的非官方但是') 
let fn2 = () =>  console.log('尽快更换') 
module.exports.str1 = str1
module.exports.fn1 = fn1()
module.exports = {
  str2,
  fn2
}